Digital History ID 3573. Spain grew rich from the gold and silver it found after conquering native civilizations in Mexico and South America. However, conflict with Indians and the failure to find major silver or gold deposits made it difficult to persuade settlers to colonize there.
Congruent. Exactly equal in size and shape. Congruent sides or segments have the exact same length. Congruent angles have the exact same measure. For any set of congruent geometric figures, corresponding sides, angles, faces, etc. are congruent. Note: Congruent segments, sides, and angles are often marked.
SAS Postulate (Side-Angle-Side) If two sides and the included angle of one triangle are congruent to the corresponding parts of another triangle, then the triangles are congruent. A key component of this postulate (that is easy to get mistaken) is that the angle must be formed by the two pairs of congruent, corresponding sides of the triangles.